Senior Software Engineer - Java, Spring & React Melbourne | Hybrid | Permanent

- Own and evolve a business-critical retail POS platform
- Hands-on role across Java, Spring and React
- Progress towards technical leadership or architecture

The opportunity We’re partnering with a large organisation seeking a Senior Software Engineer to help own and evolve a critical POS platform operating across an extensive national store network.

Working across Java, Spring and React, you’ll contribute to the development, stability and scalability of POS, back-office and wider store systems. The role combines hands-on engineering with complex integrations, production problem-solving and technical leadership.

This would suit a strong Senior Engineer ready for greater ownership or a hands-on Tech Lead looking to influence architecture and engineering standards.

What you’ll be doing

- Designing and developing backend services using Java and Spring
- Building and improving user-facing applications with React
- Taking ownership of components across POS, back-office and store environments
- Integrating with ERP systems, payment gateways, loyalty platforms and enterprise applications
- Supporting reliable transaction processing across distributed systems
- Investigating production incidents and leading root cause analysis
- Improving CI/CD pipelines,



testing, releases and deployment automation
- Monitoring performance, reliability and platform capacity
- Contributing to architecture and technical decision-making
- Mentoring engineers and collaborating with technical and business stakeholders

What we’re looking for

- Robust commercial experience with Java and Spring
- Frontend development experience using React
- Experience with APIs, integrations and distributed systems
- Confidence working with complex, production-critical platforms
- Familiarity with CI/CD tooling such as Azure DevOps and Git
- Solid database, performance and troubleshooting knowledge
- Strong communication and stakeholder management skills

Experience with retail or POS systems, ERP integrations, payments or loyalty platforms would be highly regarded. Exposure to observability tools, scripting, automation, Windows/Linux environments or infrastructure fundamentals would also be beneficial. Why consider this role?

You’ll have genuine ownership of a high-impact platform used across a large retail network, with the opportunity to solve complex engineering challenges and progress towards broader technical leadership or architecture.

Apply now for a confidential discussion.

📌 Senior Engineer / Tech Lead (Melbourne)
🏢 Halcyon Knights
📍 Melbourne